This page describes how to monitor the operating system, the Tomcat application server, and the PostgreSQL database used by the Broker.
The operating system should be monitored to track system-level metrics such as CPU usage, memory consumption, disk I/O, and network activity.
Tomcat ships with a built-in JMX which allows to monitor deployed applications, active sessions, and memory usage.
PostgreSQL provides documentation to monitor database activity, queries, connections, ...